O o o o o o g



(Specimens.)

J. W. GREENE, Jr., 8v G. G. MOORE.

ELASTIC FABRIC.

Patented Apr. 5, 1887.

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UNITED STATES PATENT OFFICE.

JOSEPH V. GREEN, JR, AND GEORGE O. MOORE, OF EAST HAMPTON, MASS.

ELASTIC FABRIC.

SPECIFICATION forming part of Letters Patent No. 360,431, dated April 5,1887.

Application filed May 8, 1886. Serial No. 201,536.

To aZZ whom it may concern.-

Be it known that we, JOSEPH W. GREEN, Jr., and GEORGE O. MooRE, of EastHampton, county of Hampshire, and State of Massachusetts, have inventedan Improvement in Elasv tic Fabrics, of which the following description,in connection with the accompanying drawings, is a specification, likeletters on the drawings representing like parts.

This invention has for its object to produce a novel elastic fabrichaving atwilled face and back of different colors by the employment, aswill be hereinafter described, of face and back warps, a rubber warp,and one shuttle thread, the fabric being completed without theemployment of the usual binder-warps.

In the fabric herein to be described the weft employed crosses therubber warp at opposite sides at alternate picks, thus binding therubber at every pick and preventing it from materially relaxing in thefabric with relation to the fibrous warps after removing the fabric fromthe loom. The rubber warps alternate, as will be hereinafter described,with one face and one back thread at each pick, thereby drawing the faceand back threads together into the fabric and making the twill appearmore prominently.

In the manufacture of our improved fabric we employ seven harnessframes, three of which contain the face-warps, three the backwarps, andone the rubber warp, each facewarp being up for five picks and down forone pick, the back-warps being each up for one pick and then down forfive picks, the rubber warp being up for one pick and down for the next,alternating, as will be stated, with one face and one back warp at everypick.

In ourimproved fabric the face and back are of different colors-as, forinstance, if for bootweb, the face will be black and the back white.

Figure 1 in plan View shows the face of a piece of fabric embodying ourinvention, the threads being separated to better exhibit their manner ofcrossing. Fig. 2 is a longitudinal section of our fabric with thethreads separated. Figs. 3 to 8 show the position of the warp and weftin the first to the sixth pick, inclusive; and Fig. 9 shows the positionof the threads for the first repeat of the pattern, it being the same asFig. 3.

Referring to the drawings, a, c, and e repre- (Specimcnsl sent theface-warps; b, d, and f, the back-warps; r, the rubber warp, and w theweft.

Viewing Figs. 3 to 8, it will be seen that the face-warp a. is up forthe first to thefifth pick, inclusive, and is down for the sixth pick,which pick completes the pattern, it then rising and remaining up forfive picks. The back-warp b is down for the first pick and remains downuntil the fifth pick, when it is raised, but it goes down for the sixthpick. The face-warp c is up for the first pick, but goes down for thesecond pick, and remains down for one pick, rising at the third pick,and remaining up for the fourth, fifth, and sixth picks, and also forthe first pick of the repeat, as in Fig.9. The rubber warp r is down onthe first, third, and fifth picks, and up on the second, fourth, andsixth picks, alternately, wit-h one face and one back, as shown, at eachpick. The back-warp d is up on the first pick, down on the second pick,remaining down un til after the sixth pick. The face-warp e is up on thefirst pick and remains up for the second and third picks, going down onthe fourth pick and coming up for the fifth pick, remaining up for thesixth pick. The backwarpf is down for the first and second picks, is upon the third piek,and down on the fourth, fifth, and sixth picks. Theshed following the sixth pick is just the same as the first, or as shownby Figs. 9 and 3.

From the foregoing it will be seen that the rubber alternates with oneface and one back warp at each pick, the back and face warps binding theweft to the rubber--as, for instance, supposing the first pick to havebeen made when the thread 1' is raised for the second. pick, the rubberrises, one face-thread, c, and one back-thread, cl, fall, and the weftis inserted; then for the third pick the rubber is lowered and aface-thread, c, and a backthread, f, are raised and the weft is thrown,and then for the fourth pick the rubber warp r is lifted and theface-warp e and the backwarpsfare lowered, and so on, as shown in Figs.2 to 8.

Herein we have shown enough warp-threads for two dents of the reed, eachdent containing three face and three back warpthreads and one rubberwarp-thread. These threads may be single or double in the same heddle.

\Ve are aware that elastic fabrics have been made wherein the warps arecarried by eight harnessesthree for the face-warps, three for theback-warps, one for a binder-warp, and one for a rubber warp, the rubberand binder alternating at every pick, the face-warp going down with therubber warp at every sixth pick, a back-warp coming up with the rubberat every sixth pick, the binder-warp stitching together, as it were, theback and face of the fabric between each rubber warp, the fabric beingtwilled at both sides. lVe are also aware that an elastic fabric hasbeen made wherein the warps are carried by seven harnessesfour for theface and two for the back warps and one harness for the rubber warps,the face and back being of different colors, the binder being omitted,the rubber being bound above and below at every second pick, the patternbeing completed with every eighth pick, the fabric being twilled at itsface and plain woven at its back. To twill the fabric last referred toat both face and back would require nine harnesses.

In' interweaving the warp and weft, as stated, the threads in each dentof the reed co-operating with the weft form a sort of a braid whichbinds the rubber closely, preventing it from unduly slipping back, as isthe case in webs where a binder-warp is employed.

The closer or firmer that the rubber is face and twilled back, the saidfabric contain- 7 ing six sets of fibrous warpthreads and a rubber warpunited by a weft-thread, three sets of the said fibrous warpsconstituting the back and three constituting the face, each rubberthread alternating with one face and one back thread at eachpiclesubstantiall y as described, the rubber being thereby bound intothe fabric at each pick, as set forth.

In testimony whereof we have signed our names to this specification inthe presence of two subscribing witnesses.

J OS. \V. GREEN, JR. GEO. O. MOORE. Witnesses:

GEORGE M. J oHNsoN, EDMUND H. SAWYER.

